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MFG:AD  Package Cooled:QFP  D/C:08+  

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Part Number: ADP3502

 

MFG: AD

Package Cooled: QFP

D/C: 08+

Description: The ADP3502 is a multifunction chip optimized for CDMA-1x cell phone power management. It offers a tot...


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ADP3502 General Description


The ADP3502 is a multifunction chip optimized for CDMA-1x cell phone power management. It offers a total power solution for the handset baseband and RF section, including LDOs to power 11 subsystems. Also integrated are a real-time clock (RTC), serial bus interface, and charging control for Li-Ion/ Li-Polymer batteries. Sophisticated controls are available for power-up during battery charging, keypad interface, GPIO/INT function, and RTC function.

The ADP3502 is optimized for CDMA handsets powered by single-cell Li-Ion batteries. Its high level of integration significantly reduces the design effort, number of discrete components, and solution size/cost. The main-sub LDO structure reduces the standby current consumption, and as a result, greatly extends the standby time of the phone. System operation has been proven to be fully compatible with MSM51xx-based designs.

The ADP3502 comes in a 64-lead 7 mm * 7 mm * 1 mm TQFP package and is specified over a wide temperature range of 30°C to +85°C.

ADP3502 Maximum Ratings

Voltage on ADAPTER, ADPSUPPLY Pin
   to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ... .0.3 V, 15 V
Voltage on VBAT Pin to GND . . . . . . . . . . . .. .  .0.3 V, +6.5 V
Voltage on Pins 613, 2128
   to GND . . . . . . . . . . . . . . . . . . . . . . .. 0.3 V, VLDO1 + 0.3 V
Voltage on Pins 1, 6264 . . . . . . . . . . ..0.3 V, VBAT + 0.3 V
Voltage on Pins 20, 32 . . . . . . . . . . . . . 0.3 V, VRTCV + 0.3 V
Voltage on Pin 60 . . . . . . . . . . . . .... 0.3 V, VADAPTER + 0.3 V
Voltage on Pins 25, 14, 30, 31, 33 . . . . .. . .. 0.3 V, +6.5 V
Storage Temperature Range . . . . . . . . . . .65°C to +150°C
Operating Temperature Range . . . . . . . . . . 30°C to +85°C
Maximum Junction Temperature . . . . . . . . . ... . . . . . . . 125°C
JA Thermal Impedance (TQFP-64)
(2-Layer Board) . . . . . . . . . . . . . . . . . . . . . . . . . . . .87.4°C/W
JA Thermal Impedance (TQFP-64)
(4-Layer Board) . . . . . . . . . . . . . . . . . . . . . . . . . .. . 56.2°C/W
Lead Temperature Range
(Soldering, 60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C

*Stresses above those listed under Absolute Maximum Ratings may cause permanent
  damage to the device. This is a stress rating only; functional operation of the
  device at these or any other conditions above those listed in the operational
  sections of this specification is not implied. Exposure to absolute maximum rating
  conditions for extended periods may affect device reliability. Absolute maximum
  ratings apply individually only, not in combination. Unless otherwise specified all
  other voltages are referenced to GND.

ADP3502 Features

`11 LDOs Optimized for Specific CDMA Subsystems
`4 Backup LDOs for Standby Mode Operation
`Ultra Low Standby Supply Current
`High Accuracy Battery Charger (0.7%)
`3 Li-Ion Battery Charge Modes
      5 mA Precharge
      Low Current Charge
      Full Current Charge
`Integrated RTC
`Ambient Temperature: 30C to +85C
`64-Lead 7 mm * 7 mm * 1 mm TQFP Package

ADP3502 Typical Application

·CDMA/CDMA2000/PCS Handsets

ADP3502 Connection Diagram

ADP3502  Connection Diagram

ADP3502 datasheet

ADP3502
PDF/DataSheet Download

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